Hi Paul,
Sorry, can't resist commenting on the shell script. I realise it's old
and unedited in years. :-)
> read inputline
bash's read has -r to turn off backslash processing.
> if echo "$inputline" | grep -qv '^-\+-:$'
bash provides [[ and, as well as the parsing of its operands being more
regular, its operators include == (AKA =) that do `extglob' matching,
thus
if [[ $inputline == +(-) ]]; then ...
No need to double-quote $inputline. No need to escape the parenthesis
in the glob.
Cheers, Ralph.
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